<!DOCTYPE html>
<html>
  <head>
    <title>CSSOM View - Simultaneous scrollIntoViews</title>
    <link rel="help" href="https://drafts.csswg.org/cssom-view/#dom-element-scrollintoview">
    <script src="/resources/testharness.js"></script>
    <script src="/resources/testharnessreport.js"></script>
    <script src="/dom/events/scrolling/scroll_support.js"></script>
    <script src="/css/css-scroll-snap/support/common.js"></script>
    <script src="resources/simultaneousScrollIntoViews.js"></script>
  </head>
  <body>
    <style>
      .scroller {
        overflow-y: scroll;
        height: 200px;
        width: 200px;
        background-color: teal;
        border: solid 1px black;
        position: relative;
        display: inline-block;
      }
      .space {
        height: 200vh;
        width: 200vw;
      }
      .box {
        height: 50px;
        width: 50px;
        background-color: purple;
      }
      .target {
        position: absolute;
        top: 150%;
      }
    </style>
    <div id="scroller1" class="scroller">
      <div class="space"></div>
      <div class="box target" id="target1"></div>
    </div>
    <div id="scroller2" class="scroller">
      <div class="space"></div>
      <div class="box target" id="target2"></div>
    </div>
    <script>
      const scroller1 = document.getElementById("scroller1");
      const scroller2 = document.getElementById("scroller2");
      const target1 = document.getElementById("target1");
      const target2 = document.getElementById("target2");

      const targets = [target1, target2];
      const scrollers = [scroller1, scroller2];
      const target_offsets = [target1.offsetTop, target2.offsetTop];

      promise_test(async (t) => {
        await simultaneousScrollIntoViewsTest(t,
                                    ["smooth", "smooth"],
                                    targets,
                                    scrollers,
                                    target_offsets);
      }, "Simultaneous smooth scrollIntoViews run to completion");

      promise_test(async (t) => {
        await simultaneousScrollIntoViewsTest(t,
                                    ["smooth", "instant"],
                                    targets,
                                    scrollers,
                                    target_offsets);
      }, "Simultaneous smooth,instant scrollIntoViews run to completion");

      promise_test(async (t) => {
        await simultaneousScrollIntoViewsTest(t,
                                    ["instant", "smooth"],
                                    targets,
                                    scrollers,
                                    target_offsets);
      }, "Simultaneous instant,smooth scrollIntoViews run to completion");

      promise_test(async (t) => {
        await simultaneousScrollIntoViewsTest(t,
                                    ["instant", "instant"],
                                    targets,
                                    scrollers,
                                    target_offsets);
      }, "Simultaneous instant scrollIntoViews run to completion");
    </script>
  </body>
</html>
